300 WSM load workup

[dogz]

I know of a handful of 300 WSM's in my area and to a T they;re all using 64/H4350 with 180's. Back up powder is always R17.

Lots of elk are turfed with this load.

Glad you got it perking!

 

[Rick Richard]

I know of a handful of 300 WSM's in my area and to a T they;re all using 64/H4350 with 180's. Back up powder is always R17.

Lots of elk are turfed with this load.

Glad you got it perking!

I am at 63.5. Close enough.

 

[adk hunter]

I tagged in and have been chasing .75-.4's with H-4350. 163HHT's Just not consistent accuracy. I gave it a quick clean after 60 rounds and switched powder to Superformance and second load was .535. I think I may be onto something. More to come tomorrow hopefully...

 

[haisardao]

I was getting inconsistent groups with the combo of H4350 and Fed 210M, switched to Fed215M and groups are better, let's see if they hold.

 

[JAYgs8163]

I was getting inconsistent groups with the combo of H4350 and Fed 210M, switched to Fed215M and groups are better, let's see if they hold.

What projectile?

 

[haisardao]

What projectile?

Berger 215s

 

[KsKevin]

Well, H4350 works like a charm, I'm shooting the 215s at 2820 with 63.0 gr and Fed 210M and COAL of 3.140.
That is a 6 shot group fired relatively fast.

If you're not at max load for this recipe, you may want to test just a touch more powder (like 0.2g) as that vertical stringing is often a sign of just being on the low edge of your powder charge accuracy node.

 

[GarBy]

I shoot 7828 ssc in a 9 twist with 212's in a 24" barrel at 2820 and it's not a hot load. It shoots 1/4 moa to 400.

 

[Marky_mark]

I was getting inconsistent groups with the combo of H4350 and Fed 210M, switched to Fed215M and groups are better, let's see if they hold.

you could try a little more neck tension

 

[haisardao]

you could try a little more neck tension

Good idea. I usually start at .002 but that might be just the ticket.

 

[keith4kk]

My 300 wsm, out to 1060 yards at Element in Holt Florida. Shot Temps from 40 to 95. Very little variance.
Berger 190 VLD
H4831sc 67.5 gr
210M primers
Muzzle 2908
26 inch barrel 1:10 twist.
Consistent. .6 at 100 yards.

 

[Rick Richard]

My 300 wsm, out to 1060 yards at Element in Holt Florida. Shot Temps from 40 to 95. Very little variance.
Berger 190 VLD
H4831sc 67.5 gr
210M primers
Muzzle 2908
26 inch barrel 1:10 twist.
Consistent. .6 at 100 yards.

Welcome from the Hickory area

 

[keith4kk]

Welcome from the Hickory area

Thanks. I'm up near Waynesville. We do shot at Carolina west in Nebo about once a month.

 

[SammySTW]

I know of a handful of 300 WSM's in my area and to a T they;re all using 64/H4350 with 180's. Back up powder is always R17.

Lots of elk are turfed with this load.

Glad you got it perking!

How does the velocity compare with H4350 and RL17? I'm shooting a 20" and want to keep all the speed I can with a 180